docs(state) document the reload transition parameter

Author: christopherthielen

src/state.js

@@ -896,9 +896,10 @@ function $StateProvider(   $urlRouterProvider,   $urlMatcherFactory) {
      * - **`relative`** - {object=$state.$current}, When transitioning with relative path (e.g '^'), 
      *    defines which state to be relative from.
      * - **`notify`** - {boolean=true}, If `true` will broadcast $stateChangeStart and $stateChangeSuccess events.
-     * - **`reload`** (v0.2.5) - {boolean=false}, If `true` will force transition even if the state or params 
-     *    have not changed, aka a reload of the same state. It differs from reloadOnSearch because you'd
-     *    use this when you want to force a reload when *everything* is the same, including search params.
+     * - **`reload`** (v0.2.5) - {boolean=false|string|object}, If `true` will force transition even if no state or params
+     *    have changed.  It will reload the resolves and views of the current state and parent states.
+     *    If `reload` is a string (or state object), the state object is fetched (by name, or object reference); and \
+     *    the transition reloads the resolves and views for that matched state, and all its children states.
      *
      * @returns {promise} A promise representing the state of the new transition.
      *